Gage-cock



(No Model.)

W. CASEY.y

GAGE 000K.

No. 297,569. Patented Abr. 29', 1884.

Nirn Smarts ATENT rrrcn.

GAGE-COCK.

SPECIFICATION forming part of Letters Patent No. 297,569, dated April 29, 1884:.

Application filed July 9, 18H3. (No model.)

To @ZZ whom it may concern:

Be it known that I, VILLIAM CASEY, a citizen of the United States, residing at Algiers, in the parish of Orleans and State of Louisiana, have invented a new and useful Gage- Oock, of which the following` is a specication.

My invention relates to improvements in gage-cocks in which the valve is placed inside of the boiler; and the objects of my invention are, rst, to have the valve and stem in such a position that they will not be injured by any damage to the projecting portions of the gage arising from wrecks or other sources; second, to provide a means by which the cock can be operated when any damage may occur to the projecting portions of the cock. I attain th ese objects by the mechanism illustrated in the accompanying drawings, in which- Figure l is a longitudinal section of cock. Fig. 2 is a transverse section taken through the plane x Fig. l. Fig. 3 is a longitudinal section of cock, showing manner of operating same when the projecting portion of cock has been injured or disabled.

Similar letters refer to similar parts throughout the several views.

The plates B indicate the shell of boiler. The piece C is screwed into the shell of the boiler B at the end of the piece C, and on the inside of the boiler is placed the valve A, secured to the stem D,which is kept in position, when steam is down, by the spring F. The end of the stem D is fitted with a nut, H, to keep the spring F in position. I are ports cast in the piece O, through which the water is allowed to pass. The side of the stem DV is also cut away, as at i, to allow the water to pass. The chamber G of the cock is screwed into the piece C at L. This chamber G has a valve, R, at its rear end, which is secured to the stem O,` which stem passes through the chamber G, and is fitted with a screw at Nto propel the screw in and out. The outer end of the stem O is fitted with a handle, M.

Opening into the chamber G is the outletpipe W, throughwhich the water is discharged.

The cock is operated by screwing the stem O in by the handle M, When the valve R will press against the nut H on end of stem D, and push the valve A off from its seat, and allow the water to pass through the ports I and 'i into the chamber G and out through the outlet il?. The point L, where the chamber G screws into the piece C, being the Weakest part of the cock, the chamber would be broken off at that point in case of accident, which would in no way misplace or injure the valve A or the short stem D; and in case of an\ accident the valve A can be manipulated by a small chamber, S, without valve, which will screw into piece C at L, this chamber S to be kept on hand in case of an accident, or one of the chambers C may `be kept on hand for an emergency.

I am aware that prior to my invention gage-- cocks have been made having two valves-one on inside of boiler; therefore I do not claim such a combination, broadly, but

What I do claim as my invention, and desire to secu re by Letters Patent, is*

In a gage having two valves, one being placed on the inside of the boiler, the combination of the ports l, cast in shell C of inner valve, A, with the short stem D of the inner valve, A, and the screw N on stem O of the outer valve, R, all substantially as described, and for the purpose specified. j

' VILLIAM CASEY.

Vitnesses:

WILLIAM Gnoarn, ALBERT G. TILTON. 

